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Analog Devices Inc. LTC4410ES6#TRMPBF
- Part No.:
- LTC4410ES6#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC4410ES6#TRMPBF.pdf
- Description:
- IC BATT CHG LI-ION 1CEL TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:270
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Product details
Overview
LTC4410ES6#TRMPBF from Analog Devices (formerly Linear Technology) is a USB power manager IC that controls total current allocation between a USB-powered portable device and its linear battery charger. It features 100mV dropout at 500mA, 1µA battery drain in VOUT > VIN mode, and dual-mode USB current limiting (100mA/500mA) via MODE pin. It enables simultaneous USB operation and Li-ion charging in cellular phones and digital cameras.
For engineers reviewing the LTC4410ES6#TRMPBF datasheet, LTC4410ES6#TRMPBF pinout, LTC4410ES6#TRMPBF application, or LTC4410ES6#TRMPBF equivalent, key selection criteria include USB compliance current control accuracy (±6% CHP current), thermal shutdown behavior, UVLO threshold (4.2V typ), and compatibility with LTC4053/LTC4054-type chargers using PROG-pin current programming.
Technical Context
The LTC4410ES6#TRMPBF integrates a precision current-sense MOSFET replica to source IVOUT/1000 ±6% from CHP, enabling real-time charge current reduction as system load increases. Its internal UVLO comparator activates above 4.2V on VIN and drives USBP high to control external P-channel MOSFETs for battery isolation.
It implements dual-mode USB current management: MODE = low enables 370µA offset current for 100mA compliance; MODE = high disables offset for 500mA mode. Quiescent current is 80µA in 500mA mode and 700µA in 100mA mode - both compliant with USB suspend requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Operating Range | 4.35V to 5.5V - matches standard USB 5V supply with margin for cable drop and regulation tolerance. |
| CHP Current Accuracy | ±6% - ensures precise proportional reduction of battery charge current to maintain USB port compliance. |
| UVLO Threshold | 4.05V to 4.35V - prevents false enablement during brown-out or weak USB sources. |
| Quiescent Current (500mA mode) | 80µA typical - meets USB 2.0 suspend mode current limit (≤500µA). |
| Battery Drain (VOUT > VIN) | 1µA typical - minimizes self-discharge when device runs off battery without USB connection. |
| RDS(ON) Equivalent | ~170mΩ at 25°C - yields ≤100mV dropout at 500mA, critical for low-loss power path. |
| Thermal Shutdown | Activates at TJ ≥ 125°C - protects device during sustained overload without requiring external thermal design. |
Pinout & Package
Package: 6-lead TSOT-23 (ThinSOT™), 1mm profile, JEDEC MO-193 compliant. Pin pitch 0.95mm, body size 2.90mm × 1.60mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | USB input supply sense and power path input | Must be bypassed with 10µF ceramic + 1Ω series resistor to suppress hot-swap transients; enables internal switch above 4.2V. |
| GND (Pin 2) | Signal reference ground | Shared return for all analog and power paths; must be low-impedance connection to minimize sensing error. |
| MODE (Pin 3) | USB current limit mode select | Logic-low = 100mA mode (adds 370µA offset to CHP); logic-high = 500mA mode (no offset); threshold: VIH ≥ 1.2V, VIL ≤ 0.4V. |
| USBP (Pin 4) | USB voltage presence output | Open-drain compatible; pulls high (>4.8V) when VIN > UVLO threshold; used to drive external P-MOSFET gate for battery disconnect. |
| CHP (Pin 5) | Charger program current output | Sources IVOUT/1000 ±6% (or +370µA in 100mA mode); connects directly to PROG pin of LTC4053/LTC4054 to modulate charge current. |
| VOUT (Pin 6) | Power path output to system load | Delivers regulated USB power to device; requires ≥10µF X5R ceramic bypass; held off when VOUT > VIN to prevent reverse current. |
Key Features
| Feature | Design Value |
|---|---|
| No external blocking diode required | Internal MOSFET architecture blocks reverse current automatically when VOUT > VIN, eliminating 0.3–0.7V diode drop and associated heat. |
| Dual USB current compliance modes | Hardware-selectable 100mA/500mA limits via MODE pin - supports full USB 1.0/2.0 specification without firmware or configuration registers. |
| Low-power battery backup mode | 1µA typical drain when operating off battery (VOUT > VIN) - extends shelf life and runtime in disconnected state. |
| Integrated UVLO and thermal protection | Self-contained protection with no external components: 4.2V UVLO activation and 125°C junction shutdown. |
| Minimal external component count | Only bypass capacitors and optional pull-up/down resistors needed - reduces BOM cost and PCB area vs discrete solutions. |
Applications
| Cellular Phones | Digital Cameras |
|---|---|
Use Scenario: Smartphone connected to USB host while operating display, camera, and RF subsystems. IC Role / Device Role / Timing Role: USB power manager controlling shared current between AP/RF load and Li-ion charger. Use Value: Enables full-system operation + charging without violating USB 500mA limit; eliminates need for manual "charge only" mode. |
Use Scenario: DSLR or mirrorless camera drawing burst-current loads during image capture while connected to USB PC. IC Role / Device Role / Timing Role: Dynamic current allocator ensuring USB compliance during high-ILOAD events (e.g., flash charging, sensor readout). Use Value: Prevents host port overcurrent shutdown by reducing charge current in real time - maintains stable USB enumeration and data transfer. |
| MP3 Players | Battery Backup Systems |
Use Scenario: Portable audio player streaming music over USB while recharging internal Li-ion cell. IC Role / Device Role / Timing Role: PowerPath controller managing priority between system load and linear charger under USB 100mA constraint. Use Value: Sustains playback during charging without battery depletion - leverages 1µA quiescent drain to preserve charge when USB disconnected. |
Use Scenario: Industrial handheld meter with primary Li-ion battery and USB-based firmware update/backup capability. IC Role / Device Role / Timing Role: Fail-safe power arbitrator ensuring system remains powered during USB insertion/removal transitions. Use Value: USBP output signals valid USB presence to MCU, enabling automatic switchover and preventing brown-out during hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4412ES6#TRMPBF | Higher VIN range (3V–28V), no MODE pin, fixed 500mA USB limit; uses external sense resistor for current monitoring. | Designed for wide-input DC-DC OR-ing (e.g., wall adapter + USB), not USB-spec-compliant current limiting. | Select LTC4412ES6#TRMPBF only when supporting non-USB inputs or requiring >5.5V operation; not drop-in for USB 100mA/500mA mode switching. |
| LTC4055EDD#TRPBF | Integrated USB power controller + linear charger in 4mm × 4mm QFN; includes automatic battery switchover and C/10 termination. | Single-chip solution replacing both LTC4410ES6#TRMPBF and external charger (e.g., LTC4053); no separate CHP/USBP pins. | Choose LTC4055EDD#TRPBF for space-constrained designs needing full USB power + charge integration; requires PCB redesign due to different package and pinout. |
Compared with LTC4410ES6#TRMPBF, LTC4412ES6#TRMPBF offers broader input voltage support but lacks USB 100mA mode and MODE pin control, while LTC4055EDD#TRPBF consolidates power management and charging but removes flexibility to pair with discrete chargers like LTC4054.
Availability
LTC4410ES6#TRMPBF is available at Aetrix Electronics and suitable for cellular phones, digital cameras, MP3 players, and battery backup systems requiring stable component supply across industrial temperature ranges (–40°C to 85°C).
Supply support for LTC4410ES6#TRMPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Linear Technology in 2017 and maintains its precision analog portfolio, including power management ICs designed for high accuracy, low noise, and robust reliability in portable and industrial systems.
The LTC4410ES6#TRMPBF belongs to Linear's USB PowerPath™ family, engineered specifically for USB-compliant portable devices needing dynamic current arbitration between system load and battery charging without firmware intervention.
FAQ
What is the primary function of the CHP pin on the LTC4410ES6#TRMPBF?
The CHP pin on the LTC4410ES6#TRMPBF sources a precision current equal to IVOUT/1000 ±6%, plus a 370µA offset in 100mA mode, to dynamically reduce battery charge current and maintain USB port compliance. This current connects directly to the PROG pin of compatible chargers like LTC4053, enabling real-time load-dependent charge control without microcontroller involvement. The LTC4410ES6#TRMPBF relies on this analog feedback loop for seamless USB power arbitration.
Does the LTC4410ES6#TRMPBF require an external blocking diode?
No, the LTC4410ES6#TRMPBF does not require an external blocking diode. Its internal MOSFET architecture inherently blocks reverse current when VOUT exceeds VIN - such as when the device operates solely from battery with no USB connection - resulting in only 1µA typical battery drain. This eliminates forward voltage drop, heat generation, and PCB area typically associated with Schottky or PN diodes in power-path designs using the LTC4410ES6#TRMPBF.
How does the MODE pin affect USB current compliance in the LTC4410ES6#TRMPBF?
The MODE pin on the LTC4410ES6#TRMPBF selects between USB 100mA and 500mA compliance modes: logic-low enables 100mA mode by adding a 370µA offset to the CHP current, while logic-high enables 500mA mode with no offset. This hardware-selectable feature ensures strict adherence to USB 1.0/2.0 specifications without software configuration. The LTC4410ES6#TRMPBF uses this pin to scale charge current reduction proportionally to system load in either mode.
What is the purpose of the USBP output on the LTC4410ES6#TRMPBF?
The USBP output on the LTC4410ES6#TRMPBF is an open-drain signal that goes high when VIN exceeds the UVLO threshold (~4.2V), indicating valid USB power presence. It is commonly used to drive the gate of an external P-channel MOSFET to disconnect the battery from the USB peripheral during USB connection - enabling operation even with deeply discharged batteries. This function is integral to the LTC4410ES6#TRMPBF's role as a USB-aware power arbitrator.
Can the LTC4410ES6#TRMPBF operate with wall adapter inputs in addition to USB?
Yes, the LTC4410ES6#TRMPBF can manage power from wall adapters in addition to USB ports. When combined with external components like a P-channel MOSFET (MP1) and Schottky diode (D1), it enables priority-based power selection where the wall adapter supplies both system load and battery charging while USB serves as secondary source. The LTC4410ES6#TRMPBF maintains current compliance relative to the selected source's rating - e.g., 750mA for wall adapter - preserving its core current-allocating functionality across input types.
LTC4410ES6#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 1
- Current - Charging:
- -
- Programmable Features:
- -
- Fault Protection:
- Over Temperature, Reverse Current
- Charge Current - Max:
- -
- Battery Pack Voltage:
- -
- Voltage - Supply (Max):
- 5.5V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC4410ES6#TRMPBF FAQ
1.How can I place an order for LTC4410ES6#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4410ES6#TRMPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC4410ES6#TRMPBF reliable?
The price and inventory of LTC4410ES6#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4410ES6#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC4410ES6#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4410ES6#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4410ES6#TRMPBF?
LTC4410ES6#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4410ES6#TRMPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC4410ES6#TRMPBF?
For technical support, including LTC4410ES6#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4410ES6#TRMPBF requirements.
6.How does Aetrix verify that LTC4410ES6#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC4410ES6#TRMPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC4410ES6#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC4410ES6#TRMPBF?
All LTC4410ES6#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4410ES6#TRMPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC4410ES6#TRMPBF part is unused and in its original packaging.
Return procedure for LTC4410ES6#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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